20456139

素因数分解:

$3^1\times {\mathrm{11}}^3\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:192

約数の個数: 32

約数和(自身を含む): 30919680

約数和(自身を除く): 10463541

約数列:

[1, 3, 11, 33, 47, 109, 121, 141, 327, 363, 517, 1199, 1331, 1551, 3597, 3993, 5123, 5687, 13189, 15369, 17061, 39567, 56353, 62557, 145079, 169059, 187671, 435237, 619883, 1859649, 6818713, 20456139]

約数ペア:

[(1, 20456139), (3, 6818713), (11, 1859649), (33, 619883), (47, 435237), (109, 187671), (121, 169059), (141, 145079), (327, 62557), (363, 56353), (517, 39567), (1199, 17061), (1331, 15369), (1551, 13189), (3597, 5687), (3993, 5123)]